|Item model number||Uno|
|Item Weight||0.3 ounces|
|Product Dimensions||2.5 x 1.5 x 0.5 inches|
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ATMEGA328P-PU with Arduino Bootloader - Uno
|Price:||$0.51 + $2.49 shipping|
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- The heart and sole of your next robot!
- The perfect chip to revive or upgrade your Arduino (Uno only)
- Can be used as an AVR Microcontroller, or for an Arduino Uno
- 20 MHz 28 Pin Dip with 32KB Flash, and 2KB Random Access Memory
- 6 Analog/Digital Ports, 6 Basic Digital Ports, 6 PWM, and 1 Serial bus (Tx & Rx)
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Top Customer Reviews
I purchased a couple of these ATMEGA328-PU and I was in the process of building my first Bareduino328 Plus, but the voltage regulators that I had purchased somewhere else were faulty (they overheated when connected to a 9v battery and produced virtually no output, almost zero volts). I sent an email to Virtuabotix to inquire about the best match for the voltage regulator that they used in their demos, and within minutes Joseph Dattilo (CEO of Virtuabotix) replied with a much better answer than I was expecting: he confirmed that the model I indicated should work, but also mentioned that he could make it available on their site just to help me with my project. Within minutes, they had the perfect voltage regulator available, and for an excellent price too.
It is not very common to receive courteous and effective assistance these days, but it is even less common to experience this kind of niceness and competency at once in a single person and company. To me, it is almost more important than the product itself.
BTW: To date, I have purchase the following products from Virtuabotix, and they all receive 5 stars from me. Their products are very cheap, but of excellent quality too!
Virtuabotix Two SG90 9 Gram Micro-servos
Virtuabotix MMA7361 Three Axis Accelerometer Module
...Read more ›
Order three, received three, but none of them seem to work.
The Arduino Uno is recognized in the device manager, but the IDE cannot communicate with the board with these chips installed. The RX light flashes twice when attempting to burn a sketch, and then it does nothing. The reset button does not work, or produce any noticeable effect, either.
The chip is installed the correct direction, the board mode is set to Uno, and the serial port is correct. Everything works if I remove the new chip and plug the original chip back in. They are the same part number, ATMega328P-PU, so there shouldn't be any problem, assuming the bootloader on these chips is working correctly.
After a bit of troubleshooting, I suspect the bootloader is either non-functional or nonexistent on these chips. I'll give burning a bootloader a try before I pronounce the chips DOA, of course, but having to burn a bootloader kind of defeats the whole purpose of buying them with a bootloader "installed."
This atmega replaces the whole arduino, so is great for making your project deffinitive on a board. the only extra things you need is the quartz crystal and a 5v power source.
Remember that this atmega has uno bootloader, so if you use it on a duemilanove you`ll have to select arduino uno as your board for uploading your sketches.
One last tip, remember to buy 28 pin sockets, so it's a lot easier to unmount if you need to.
Other recent reviewers seem to have the same problem. If you are thinking of buying these, I would recommend against it.
I was able to successfully bootload these and got them working, confirming that they did not come boot loaded. I followed the following tutorial:
I did have to use the oscillator which I believe means someone attempted to bootload them before.
Most Recent Customer Reviews
Bootloader was present, and the chip worked as stated.
Just please be careful when inserting the chip into a Styrofoam block, as one of the pins was bent 90 degrees. Read more
I guess their good so far, I thought they were DOA at first though, they did not have a boot loader installed. Read morePublished 7 months ago by Daniel Carter
Did not include the bootloader. That's the only reason I bought this particular chip.Published 9 months ago by JFriz